Websites:

• AdaFruit

• GPUtils Pic Microcontroller Information

• Datasheet Catalog

Books:

• White, Elicia - Making Embedded Systems

• Lippman, Stanley; Lajoie, Josee; Moo, Barbara - C++ Primer

• Schildt, Herbert - The Complete C Reference

Articles:

• Santor, Garth - Program Memory Layout